Shell of differential speed variator for automobile

A technology for transmissions and vehicles, which is applied to transmission boxes, transmission parts, components with teeth, etc., can solve the problem that the reinforcing ribs cannot meet the strength requirements, and achieve the effects of saving materials, enhancing strength, and reducing costs.

Inactive Publication Date: 2015-07-22
CHONGQING ZHONGHUA MACHINERY
18 Cites 3 Cited by

AI-Extracted Technical Summary

Problems solved by technology

However, for some differential transmission assemblies with output powe...
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Method used

[0011] The vehicle differential transmission housing as shown in Figure 1 is mainly composed of a case cover and a casing, and the two parts are fastened together and locked by six bolt and nut assemblies 10. The case cov...
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Abstract

The invention relates to a shell of a differential speed variator for an automobile. The shell of the differential speed variator for the automobile comprises a box cover and a box body. The box cover and the box body are fastened together and are locked through a bolt and nut component. A power input hole and power output hole are formed in the box cover. An annular boss and an annular rib are arranged with the power input hole as the center of a circle, and the diameter of the annular boss is smaller than that of the annular rib. Strip-shaped ribs which are distributed in a divergent shape are further arranged with the power output hole serving as the center of a circle. The inner side end of each strip-shaped rib is connected to the first annular boss. The outer side ends of part of strip-shaped ribs stretch out of the annular rib, and the outer side ends of the rest strip-shaped ribs are connected with a positioning column arranged on the annular rib. The number of the strip-shaped ribs at one side close to the power input hole is larger than that of the strip-shaped ribs at one side far away from the power input hole. The parts, located between the annular rib and the annular boss, of the strip-shaped ribs are coplanar with the annular rib and the annular boss. The depths of the parts, located outside the annular rib, of the strip-shaped ribs are decreased gradually until the parts are flushed with the box cover. The intensity of the power input hole and the power outlet hole of the box cover are increased, and the box cover can bear a comparatively large torque when the differential speed variator for the automobile works.

Application Domain

GearboxesGearing details

Technology Topic

VariatorEngineering +1

Image

  • Shell of differential speed variator for automobile
  • Shell of differential speed variator for automobile

Examples

  • Experimental program(1)

Example Embodiment

[0010] In the following, the present invention will be further explained through the embodiments and the accompanying drawings:
[0011] Such as figure 1 The differential transmission housing for a vehicle shown is mainly composed of a box cover and a box body. The two parts are buckled together and locked by six bolt and nut assemblies 10. The box cover is provided with a power input hole 1 for installing a power input shaft, and a power output hole 2 for installing a power output shaft. The box cover and box body are all aluminum castings, which are light in weight.
[0012] An annular boss 3 and an annular rib 4 are provided with the power output hole 2 as the center. The ring boss 3 surrounds the outer periphery of the power output hole 2. The diameter of the ring rib 4 is larger than the diameter of the ring boss 3. With the power output hole 2 as the center, strip ribs 5 distributed in a divergent shape are also provided. The inner end of each strip rib 5 is connected to the annular boss 3, and the outer end of part of the strip ribs 5 extends to the annular rib 4 In addition, the outer ends of part of the strip ribs 5 are connected to the positioning posts 9 provided on the ring ribs 4.
[0013] In order to increase the strength between the power input hole 1 and the power output hole 2 on the cover, there are more strips 5 on the side close to the power input hole 1 than on the side far from the power input hole 1, that is, the The strip ribs 5 between the input hole 1 and the power output hole 2 are denser, and the strip ribs 5 on the side away from the power input hole 1 are relatively sparse. The thickness of the strip rib 5 is defined as: the part of the strip rib 5 between the ring rib 4 and the ring boss 3 is coplanar with the ring rib 4 and the ring boss 3, and the thickness of the part outside the ring rib 4 gradually decreases. Until it is flush with the lid.
[0014] Preferably, the outer periphery of the power input hole 1 is provided with four positioning and mounting bosses 6 uniformly distributed around the circumference, and one of the positioning and mounting bosses 6 is located between the power input hole 1 and the power output hole 2 and passes through three connecting ribs 7 Connected to the power input hole 1, the remaining three positioning and mounting bosses 6 are respectively connected to the power input hole 1 through their corresponding connecting plates 8, and the connecting ribs 7 are coplanar with the connecting plate 8.

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Description & Claims & Application Information

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